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Finding the Fourth Proportional to 9,335.31, 12,899.13 and 7,462.35

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Solution

The fourth proportional to 9,335.31, 12,899.13 and 7,462.35 is: 10,311.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,335.31 : 12,899.13 = 7,462.35 : x
  2. Step 2: Convert to fraction form
    9,335.31/12,899.13 = 7,462.35/x
  3. Step 3: Cross multiply
    9,335.31x = 12,899.13 × 7,462.35
  4. Step 4: Simplify right side
    9,335.31x = 96,257,822.76
  5. Step 5: Solve for x
    x = 96,257,822.76/9,335.31
  6. Step 6: Final answer
    x = 10,311.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.